KR102429661B1 - Method and system for establishing a service session between seeker device and advertiser device - Google Patents

Abstract

Embodiments herein disclose a method for establishing a service session in a wireless peer-to-peer (P2P) network. A method for creating a service session in a wireless P2P network is provided. The method includes transmitting an intent from the searcher device to the advertiser device during a Near Field Communication (NFC) data exchange between a searcher device and an advertiser device, wherein the intent corresponds to one or more services and one or more parameters. The method also includes establishing a service session between the searcher device and the advertiser device when the one or more services are supported by the advertiser device.

Description

Method and system for establishing a service session between seeker device and advertiser device

Embodiments according to the present disclosure relate to wireless-fidelity (Wi-Fi) direct systems, in particular a searcher device and advertisement in a wireless peer-to-peer (P2P) network. An object of the present invention is to provide a method and system for establishing a service session between child devices.

Wireless-Fidelity (Wi-Fi) Direct allows two devices to connect directly without an access point. The Wi-Fi Direct is a standard defined by the Wi-Fi Alliance. The Wi-Fi Alliance also provides the frame that represents specific Application Program Interfaces (APIs) for an application to allow an application easy access to some of the basic aspects of the peer to peer (P2P) connection. The Application Service Platform (ASP) that substantially defines a framework or platform has been defined. The Wi-Fi Direct standard provides architecture, protocols, and functions for interoperability of Wi-Fi Direct Services (WFDS) that establish the service session. is defining

In general, the ASP is a software service or library that implements the common functions required by all applications and services conforming to the WFDS standard. However, the ASP establishes a session that is a logical link between the two ASP enabled peers to enable streamlined and structured communication between the two ASP enabled peers. enable or create The WFDS-capable system has multiple ASP sessions between two or more devices that require the WFDS functions.

Although the general paradigm of the WFDS lies in establishing and maintaining relationships such as peer devices, there is generally a service advertiser role and a service searcher role when setting up a connection. The service searcher is an application that searches for a service advertised by being connected to the service advertiser. The service advertiser is an application that is shown to serve potential service searchers and expects input connection requests from the interested service searchers. The service searcher initiates an ASP session establishment, and the service advertiser responds to an input request for establishing the ASP session.

In existing Near Field Communication (NFC) based connection mechanisms, the exchange of a Media Access Control (MAC) address automatically triggers the connection between the searcher device and the advertiser device. make it possible to do The connection is the Wi-Fi Direct. The connection mechanism follows a standard set of procedures for initiating the connection, which is considered time consuming and sometimes unnecessary. The NFC, for example, does not provide a mechanism for cooperating the most probable service for specific use cases, in which the searcher device generally selects and operates the service, only the service will be operated. As an example, consider a scenario in which the user operates a WFDS transmission service in the searcher device. After activating the transmission service, the searcher device is tapped to the advertiser device to pair the searcher device with the advertiser device. If, after pairing, the user of the searcher device detects that the transmission service is not supported by the advertiser service, it will result in dissatisfaction of the user. As shown in current NFC standards, when devices use the NFC as an out of band mechanism, the secure and easy connection setup is fundamentally lacking. Also, the Wi-Fi Direct connection experience is not intuitive, and the connection procedures take time, thus resulting in a bad user experience.

The above information is presented only as background information to help the reader understand the present invention. Applicants make no determination, and make no claim, as to whether any of the foregoing may be applicable as prior art to the present application.

A primary object of the embodiments herein is to provide a method and system for establishing a service session between a searcher device and an advertiser device in a wireless peer-to-peer (P2P) network.

Another object of the embodiments herein is to provide a method of exchanging an intent between a searcher device and an advertiser device during Near Field Communication (NFC) data exchange.

Embodiments herein provide a method for establishing a service session in a wireless peer-to-peer (P2P) network. The method includes generating a first intent including a plurality of first services and at least one parameter related to the plurality of first services, and near field communication (NFC) with the advertiser device. ) during data exchange, sending the first intent to the advertiser device, and during NFC data exchange with the advertiser device, from the advertiser device, a second intent comprising at least one second service. receiving the at least one second service, wherein the at least one second service is a service supported by the advertiser device among the plurality of first services, and based on the transmission and reception of the first intent and the second intent, the search and establishing at least one service session between the child device and the advertiser device, wherein the at least one service session is a session corresponding to each of the at least one second service.

Embodiments herein provide a searcher device for establishing a service session in a wireless peer-to-peer (P2P) network. The searcher device includes a first transceiver for communicating with a Near Field Communication (NFC) network, a second transceiver for performing P2P communication, and at least one processor connected to the first transceiver and the second transceiver. The at least one processor is configured to generate a first intent including a plurality of first services and at least one parameter related to the plurality of first services, and exchange NFC data with the searcher device. send the first intent to the advertiser device and receive, from the advertiser device, a second intent comprising at least one second service, during NFC data exchange with the searcher device; The at least one second service is a service supported by the advertiser device among the plurality of first services, and based on the transmission/reception of the first intent and the second intent, the advertiser device and the searcher device and establishes at least one service session between each other, wherein the at least one service session is a session corresponding to each of the at least one second service.

Embodiments herein provide a computer product for establishing a service session in a wireless peer-to-peer (P2P) network. The computer program product includes computer executable program code recorded on a computer readable non-transitory storage medium. The computer-executable program code, when executed, causes operations comprising transmitting an intent from the searcher device to the advertiser device during a Near Field Communication (NFC) data exchange between a searcher device and an advertiser device. and the intent corresponds to at least one service and at least one parameter. Further, the computer executable program code, when executed, results in operations comprising establishing a service session between the searcher device and an advertiser device if the at least one service is supported by the advertiser device.

These and other aspects of the embodiments herein will be better appreciated and understood when considered in conjunction with the following description and accompanying drawings. It should be understood, however, that the following description is given by way of illustration only and not limitation, although indicating preferred embodiments and many specific specifics thereof. Many changes and modifications can be made within the scope of the embodiments herein without departing from the spirit thereof, wherein the embodiments include all such modifications.

The present disclosure provides a method and system for establishing a service session between a searcher device and an advertiser device in a wireless peer-to-peer (P2P) network. The present disclosure also provides a method of exchanging intents between a searcher device and an advertiser device during Near Field Communication (NFC) data exchange.

The present disclosure is described in the accompanying drawings, in which like reference numerals indicate corresponding parts in the various drawings. Here, the above embodiments may be better understood from the following description with reference to the following drawings:
1A is a top view of a system for establishing a service session between a searcher device and an advertiser device, among others, in a wireless peer-to-peer (P2P) network, in accordance with embodiments disclosed herein; A level overview of the city in general,
1B illustrates a high-level sequence diagram for establishing a connection between the searcher device and an advertiser device in the wireless P2P network, in accordance with embodiments disclosed herein;
FIG. 2 illustrates the searcher device and advertiser when one or more services supported by the advertiser device are exchanged during a Near Field Communication (NFC) data exchange, in accordance with embodiments disclosed herein; shows a sequence diagram for establishing a service session between devices;
3 illustrates another sequence diagram for establishing a service session between the searcher device and an advertiser device in the wireless P2P network, according to embodiments disclosed herein;
4 illustrates another sequence diagram for establishing a service session between the searcher device and an advertiser device in the wireless P2P network, according to embodiments disclosed herein;
5 illustrates the service discovery information exchanged between the searcher device and an advertiser device during NFC data exchange, in accordance with embodiments disclosed herein;
6 illustrates a mechanism for discovering a service by the advertiser device using a service intent request received from the searcher device, in accordance with embodiments disclosed herein;
7 illustrates another mechanism for discovering service by the advertiser device using multiple service intents request received from the searcher device, in accordance with embodiments disclosed herein;
8 illustrates a mechanism for discovering the useful services, in accordance with embodiments disclosed herein;
9 illustrates a service session discovery mechanism, in accordance with embodiments disclosed herein;
10 illustrates another sequence diagram for establishing a service session between the searcher device and an advertiser device in the wireless P2P network, according to embodiments disclosed herein;
11 illustrates another sequence diagram for establishing a service session between the searcher device and an advertiser device in the wireless P2P network, according to embodiments disclosed herein;
12 is a flow diagram illustrating a method for establishing a service session between the searcher device and an advertiser device in the wireless P2P network, in accordance with embodiments disclosed herein;
13 is a flow diagram illustrating a method of establishing a service session by automatically forming a group between the searcher device and an advertiser device in accordance with embodiments disclosed herein;
14 illustrates an example system for automatically establishing a service session between the searcher device and an advertiser device, in accordance with embodiments disclosed herein;
15 illustrates another example system for establishing a service session between the searcher device and an advertiser device, in accordance with embodiments disclosed herein;
16 illustrates another example system for establishing a service session between the searcher device and an advertiser device, in accordance with embodiments disclosed herein;
17 illustrates another example system for establishing the service session between the searcher device and an advertiser device, in accordance with embodiments disclosed herein;
18 illustrates a computing environment implementing a method and system for establishing a service session between the searcher device and an advertiser device in the wireless P2P network, in accordance with embodiments disclosed herein.

Herein, the above embodiments, various functions and advantageous details thereof are described more fully with reference to non-limiting embodiments, which are shown in the accompanying drawings and embodied in the following description. Descriptions of well-known components and processing techniques are omitted so as not to unnecessarily obscure the embodiments herein. Also, the various embodiments described herein are not necessarily mutually exclusive, as some embodiments may be combined with one or more other embodiments to form new embodiments. As used herein, the term “or” refers to “non-exclusive or” unless otherwise indicated. The examples used herein are merely intended to enable an understanding of the ways in which the embodiments herein may be practiced, and also to enable those skilled in the art to practice the embodiments herein. Accordingly, the above examples should not be construed to limit the scope of the embodiments herein.

The terms “seeker device” and “seeker” are used interchangeably throughout the description.

The terms “advertiser device” or “advertiser” are used interchangeably throughout the description.

Embodiments herein achieve a method and system for establishing a service session in a wireless peer-to-peer (P2P) network. The method includes transmitting an intent from the searcher device to the advertiser device during a Near Field communication (NFC) data exchange between a searcher device and an advertiser device, wherein the intent corresponds to one or more services and one or more parameters. The method also includes establishing a service session between the searcher device and the advertiser device if the services are supported by the advertiser device.

In one embodiment, the method comprises identifying the services supported by the advertiser device based on the intent.

In one embodiment, the method comprises establishing the service session after identifying the services supported by the advertiser device based on the intent.

In one embodiment, the parameters include connectivity capability, working channel, listening channel, Service Set identification (SSID) average, password or PIN, Internet Protocol (IP) address of the advertiser device and the search. It can be the IP address of the own device.

In one embodiment, the method is based on the connection capability or operating channel or SSID average or a combination of the connection capability, operating channel and SSID average exchanged between the searcher device and the advertiser device during the NFC data exchange. and automatically forming a group between a searcher device and the advertiser device.

In one embodiment, the method comprises fixing a channel frequency between the searcher device and the advertiser device based on a listening channel exchanged between the searcher device and the advertiser device during the NFC data exchange.

Unlike conventional systems, an intent can be exchanged between the searcher device and an advertiser device, whereby the searcher device and advertiser device use the NFC based on service call and service negotiation to make the one Or it may be possible to negotiate more supported services.

Unlike conventional systems, the connection experience for the user can be improved. The method and system also optimizes the service discovery, service call and direct connection procedures. The method and system also improve the connected experience for the user.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring now to the drawings, preferred embodiments are shown, particularly with reference to FIGS. 1 to 18 , wherein like reference numerals consistently indicate corresponding functions throughout the drawings.

1A illustrates generally a high-level overview of a system 100a for establishing a service session between a searcher device and an advertiser device, among others, in accordance with embodiments disclosed herein. In one embodiment, the system 100a includes a searcher device 102 and a number of advertiser devices 1041 -N (hereinafter referred to as the advertiser device 104 ). The searcher device 102 may be, for example, a laptop, mobile phone, smart phone, Personal Digital Assistant (PDA), tablet, phablet, or any other communication device. may be, but is not limited thereto.

The advertiser device 104 is, for example, a mobile phone, a smart phone, a television, a stereo player, a printer, a digital broadcasting player, a personal digital assistant (PDA), media It may be, but is not limited to, a media player, a display device, a mobile game console, a digital camera, or any other electronic device.

The searcher device 102 may include suitable interfaces for communicating directly or indirectly with the advertiser device 104 and various other devices.

First, the searcher device 102 is connected to the advertiser device 104 to initiate the NFC data exchange between the searcher device 102 and the advertiser device 104 . Further, the searcher device 102 may be configured to transmit the intent to the advertiser device 104 during the NFC data exchange. In one embodiment, the intent corresponds to the services.

In an embodiment, the service may be, for example, a transmission service, a play service, a display service, a print service, a chat service, a beam service, or the like, but is not limited thereto.

In another embodiment, the intent corresponds to the parameters. In an embodiment, the parameter may include, for example, the connectivity capability, the working channel, the listening channel, the SSID average, the password or PIN, the IP address of the advertiser device 104 and the IP address of the searcher device 102 . may be, but is not limited thereto.

Further, the channel frequency between the searcher device 102 and the advertiser device 104 is fixed based on the listening channel exchanged between the searcher device 102 and the advertiser device 104 during the NFC data exchange. can be In an embodiment, after receiving the intent, the advertiser device 104 may be configured to identify services supported by the advertiser device 104 . Further, the searcher device 102 may be configured to receive matching intents from the advertiser device 104 .

In one embodiment, the matching intent corresponds to the supported service and advertisement identifier (ie advertisement_ID). Further, the group is formed between the searcher device 102 and the advertiser device 104 based on the connectivity capability or the operating channel or the SSID average or a combination thereof.

In one embodiment, after receiving the matching intent, the searcher device 102 connects the searcher device 102 with the advertisement when a service supported by the advertiser device 104 is identified. It may be configured to establish a service session between the child devices 104 .

In another embodiment, the advertiser device 104 establishes the service session between the searcher device 102 and the advertiser device 104 when a service supported by the advertiser device 104 is identified. can be configured to achieve.

Unlike conventional systems, the connection between the searcher device 102 and the advertiser device 104 fixes the channel frequency and automatically sets the group between the searcher device 102 and the advertiser device 104 . can be optimized by forming Thus, it increases the user experience and efficiency.

1A shows a limited overview of the system 100a, it will be understood that other embodiments are not so limited. Further, the system 100a may include any number of electronic devices along with other hardware or software components that communicate with each other. For example, the component may be, but is not limited to, a process running in the controller or processor, an object, an executable process, a thread execution, a program, or a computer. By way of example, both an application running on a device and the device itself can be a component.

1B illustrates a high level sequence diagram 100b for establishing a connection between the searcher device 102 and the advertiser device 104 in the wireless P2P network, according to embodiments disclosed herein. . The signaling sequence illustrates the communication between the searcher device 102 and the advertiser device 104 .

First, the searcher device 102 is connected to the advertiser device 104 to initiate an NFC data exchange between the searcher device 102 and the advertiser device 104 . In one embodiment, the channel frequency between the searcher device 102 and the advertiser device 104 is fixed based on the listening channel exchanged during the NFC data exchange.

Further, the connectivity capability information is exchanged between the searcher device 102 and the advertiser device 104 . Further, the connection is established between the searcher device 102 and the advertiser device 104 . The functions between the searcher device 102 and the advertiser device 104 are also described together in FIG. 1A .

2 illustrates the searcher device 102 and advertiser device when one or more services supported by the advertiser device 104 are exchanged during the NFC data exchange, in accordance with embodiments disclosed herein. A sequence diagram 200 for establishing a service session between 104 is shown. In one embodiment, the searcher device 102 includes multiple layers, such as an application (APP) layer 102a , a service layer 102b , an ASP layer 102c and an NFC layer 102d . Similarly, the advertiser device 104 includes multiple layers, such as an application (APP) layer 104a , a service layer 104b , an ASP layer 104c and an NFC layer 104d . Details of layers below the NFC layer, such as the physical (PHY) layers, are intentionally omitted. The signaling sequence illustrates the communication between the searcher device 102 and the advertiser device 104 .

First, in step 202, the ASP layer 104c configures the supported services and the parameters into a configuration message, and sends the configuration message to the NFC layer 104d. At the same time, the ASP layer 102c configures the services and the parameters into a configuration message, and sends the configuration message to the NFC layer 102d. In an embodiment, the service may be the transmission service, the play service, the display service, the print service, the chat service, or the like. In one embodiment, the one or more parameters include the connectivity capability, the working channel, the listening channel, the SSID average, the password or PIN, the IP address of the advertiser device 104 and the searcher device 102 . ) can be an IP address.

In step 204 , the searcher device 102 is configured to initiate an NFC data exchange between the NFC layer 102d of the searcher device 102 and the NFC layer 104d of the advertiser device 104 . connected to the device 104 . The NFC layer 102d and the NFC layer 104d exchange the intent during the NFC data exchange.

In one embodiment, the channel frequency between the searcher device 102 and the advertiser device 104 is fixed based on the listening channel exchanged during the NFC data exchange.

In one embodiment, the NFC layer 104d sends the configuration message to the NFC layer 102d with a matching intent corresponding to the supported services during the NFC data exchange.

In step 206, the NFC layer 102d receives the configuration message from the NFC layer 104d during NFC connection. After receiving the configuration message, the NFC layer 102d sends the intent as the configuration message to the ASP layer 102c, which is called a Retrieved_data event.

In step 208, after receiving the configuration message including the intent corresponding to the parameters from the NFC layer 102d, the NFC layer 104d sends the intent called a Retrieved_data event to the ASP layer. Send to (104c). The advertiser device 104 reads the Intent received from the ASP layer 104c. Then, the intent is included in the NFC response message, and delivers the information to the searcher device 102 using a Simple NFC Data Exchange Format Exchange Protocol (SNEP).

In step 210, the ASP layer 102c detects the intent and identifies all of the services supported by the ASP layer 102c. Also, the ASP layer 102c transmits the services to the service layer 102b as an event called “Search_Results”.

In step 212, after receiving the configuration message from the NFC layer 104d, the ASP layer 104c sends the session request to the service layer 104b.

In step 214, after receiving the “Search_Results”, the service layer 102b sends an intent corresponding to the services to the APP layer 102a.

In step 216, after receiving the session request from the ASP layer 104c, the service layer 104b sends the service information to the APP layer 104a.

In step 218, after receiving the one or more services, the APP layer 102a prompts the user of the searcher device 102 in a User Interface (UI) (ie, not shown). Display services.

In step 220 , the user of the searcher device 102 selects a particular service from the services supported by the advertiser device 104 . The APP layer 102a sends the selected service to the service layer 102b to operate the selected services. After receiving the user selected service, the service layer 102b sends a request to the ASP layer 102c to establish a service session between the searcher device 102 and the advertiser device 104 .

In step 222 , the ASP layer 102c follows existing techniques to initiate a service session between the searcher device 102 and the advertiser device 104 .

In step 224, a group between the searcher device 102 and the advertiser device 104 is automatically formed based on the intent corresponding to the connection capability or the operating channel or the SSID average or a combination thereof.

In step 226, after the automatic group formation is completed, the ASP session is initiated. The ASP session represents the service and session information. In one embodiment, an ASP-session is a logical link between the ASP of one device and the ASP of another device. A P2P connection between the peer devices is required to initiate an ASP-session. The ASP may set up multiple ASP-sessions between the two devices. Each ASP-session is identified by a session identifier assigned by the ASP requesting the ASP-session.

In step 228 , after the ASP session is initiated, the service session is established between the searcher device 102 and the advertiser device 104 .

3 illustrates another sequence diagram 300 for establishing a service session between the searcher device 102 and the advertiser device 104 in the wireless P2P network, according to embodiments disclosed herein. . The signaling sequence illustrates the communication between the searcher device 102 and the advertiser device 104 . First, in step 302 , as described in step 202 of FIG. 2 .

In step 304 , the searcher device 102 is connected to the advertiser device 104 to initiate an NFC data exchange between the NFC layer 102d and the NFC layer 104d. The NFC layer 102d sends the intent to the NFC layer 104d during the NFC data exchange.

In one embodiment, the intent corresponds to the service. In another embodiment, the intent corresponds to the parameters. As an example, an intent sent by the searcher device 102 to the advertiser device 104 during an NFC data exchange is described as follows:

(6 옥텟(octet) 서비스 해쉬(hash)들 6 바이트, advertisement_id 4 바이트)

(6 octet service hashes 6 bytes, advertisement_id 4 bytes)

연결 능력 1 바이트

1 byte of connection capacity

동작 채널 2/5 바이트

Operating Channel 2/5 Bytes

청취 채널 2/5 바이트

listening channel 2/5 bytes

SSID 평균(10-12 바이트)

SSID average (10-12 bytes)

In one embodiment, the channel frequency between the searcher device 102 and the advertiser device 104 is fixed based on intents corresponding to listening channels exchanged during the NFC data exchange.

In one embodiment, after receiving the service, the NFC layer 104d identifies whether the advertiser device 104 supports the requested service by the user of the searcher device 102 . After identifying the requested service, the NFC layer 104d sends a configuration message containing the matching intent corresponding to the requested service to the NFC layer 102d during the NFC data exchange.

As an example, the intent sent by the advertiser device 104 to the searcher device 102 during an NFC data exchange is described as follows:

(6 옥텟 서비스 해쉬들 6 바이트, advertisement_id 4 바이트)

(6 octet service hashes 6 bytes, advertisement_id 4 bytes)

연결 능력 1 바이트

1 byte of connection capacity

동작 채널 2/5 바이트

Operating Channel 2/5 Bytes

청취 채널 2/5 바이트

listening channel 2/5 bytes

SSID 평균(10-12 바이트)

SSID average (10-12 bytes)

Step 306 is as described in step 206 of FIG. 2 .

Step 308 is the same as described in step 208 of FIG. 2 .

In step 310 , the ASP layer 102c detects information of the supported service received from the advertiser device 104 . Also, the ASP layer 102c transmits the supported service to the service layer 102b as an event called “Search_Results”.

In step 312 , as described in step 212 of FIG. 2 .

In step 314, after receiving the “Search_Results”, the service layer 102b transmits an intent including the service to the APP layer 102a.

Step 316 is as described in step 216 of FIG. 2 .

In step 318, after receiving the service, the APP layer 102a displays the service to the user of the searcher device 102 in the UI.

In step 320, the APP layer 102a sends the service to the service layer 102b to automatically operate. Upon receiving the service, the service layer 102b sends a request to the ASP layer 102c to establish the service session between the searcher device 102 and the advertiser device 104 .

Step 322 is as described in step 222 of FIG. 2 .

Step 324 is as described in step 224 of FIG. 2 .

Step 326 is as described in step 226 of FIG. 2 .

Step 328 is the same as described in step 228 of FIG. 2 .

4 illustrates another sequence diagram 400 for establishing a service session between the searcher device 102 and the advertiser device 104 in the wireless P2P network, in accordance with embodiments disclosed herein. . The signaling sequence illustrates the communication between the searcher device 102 and the advertiser device 104 .

Step 402 is the same as described in step 202 of FIG. 2 .

At step 404 , the searcher device 102 is connected to the advertiser device 104 to initiate an NFC data exchange between the NFC layer 102d and the NFC layer 104d. The NFC layer 102d sends the intent to the NFC layer 104d during the NFC data exchange.

In one embodiment, the intent corresponds to multiple services (eg, service-A, service-B and service-C). In another embodiment, the intent corresponds to the parameters. As an example, an intent sent by the searcher device 102 to the advertiser device 104 during an NFC data exchange is described as follows:

(6 옥텟(octet) 서비스 해쉬(hash)들 6 바이트, advertisement_id 4 바이트) * N (다수의 서비스들)

(6 octet service hashes 6 bytes, advertisement_id 4 bytes) * N (multiple services)

연결 능력 1 바이트

1 byte of connection capacity

동작 채널 2/5 바이트

Operating Channel 2/5 Bytes

청취 채널 2/5 바이트

listening channel 2/5 bytes

SSID 평균(10-12 바이트)

SSID average (10-12 bytes)

In one embodiment, the channel frequency between the searcher device 102 and the advertiser device 104 is fixed based on intents corresponding to listening channels exchanged during the NFC data exchange.

In one embodiment, after receiving the plurality of services, the NFC layer 104d identifies the services from the plurality of services supported by the advertiser device 104 . After identifying the supported services from the plurality of services, the NFC layer 104d includes the matching intent corresponding to the supported services to the NFC layer 102d during the NFC data exchange. Send a configuration message.

As an example, the advertiser device 104 may support the service-A and service-B among the plurality of services (ie, service-A, service-B, service-C). In another example, the advertiser device 104 may support only the service-A of the plurality of services (ie, service-A, service-B, service-C).

As an example, the intent sent by the advertiser device 104 to the searcher device 102 during an NFC data exchange is described as follows:

(6 옥텟 서비스 해쉬들 6 바이트, advertisement_id 4 바이트) * N

(6 octet service hashes 6 bytes, advertisement_id 4 bytes) * N

연결 능력 1 바이트

1 byte of connection capacity

동작 채널 2/5 바이트

Operating Channel 2/5 Bytes

청취 채널 2/5 바이트

listening channel 2/5 bytes

SSID 평균(10-12 바이트)

SSID average (10-12 bytes)

Step 406 is as described in step 206 of FIG. 2 .

Step 408 is as described in step 208 of FIG. 2 .

In step 410 , the ASP layer 102c detects information of the supported services received from the advertiser device 104 . Also, the ASP layer 102c transmits the supported services to the service layer 102b as an event called “Search_Results”.

Step 412 is as described in step 212 of FIG. 2 .

In step 414, after receiving the “Search_Results”, the service layer 102b sends the information including the supported services to the APP layer 102a.

Step 416 is as described in step 216 of FIG. 2 .

In step 418 , after receiving the supported services, the APP layer 102a displays the services to the user of the searcher device 102 in the UI.

In step 420, the user of the searcher device 102 selects a specific service from among the supported services. The APP layer 102a transmits the selected service to the service layer 102b to operate. After receiving the user selected service, the service layer 102b sends a request to the ASP layer 102c to establish the service session between the searcher device 102 and the advertiser device 104 .

Step 422 is the same as described in step 222 of FIG. 2 .

Step 424 is as described in step 224 of FIG. 2 .

Step 426 is as described in step 226 of FIG. 2 .

Step 428 is as described in step 228 of FIG. 2 .

5 illustrates the service discovery information exchanged between the searcher device 102 and advertiser device 104 during NFC data exchange, according to embodiments disclosed herein. The connection handover specification defines the message exchanges during the NFC data exchange that allow the searcher device 102 and advertiser device 104 to trigger the alternate carrier (ac) connection. . The “ac” records fully describe the carrier information to bootstrap the connection over the alternate carrier. The connected carrier identifies that an existing connection is active. The network identifier describes additional network information associated with the alternate carrier, for example, an IP address. The “verb” NFC Data Exchange Format (NDEF) records describe the service information.

In addition, the handover message may carry one or more alternate carriers, and each alternate carrier record may carry one or more auxiliary data. The verb, network identifier and device information are auxiliary records for the alternate carrier. The connected carrier is the carrier configuration record indicating the useful existing connection.

About ASP service navigation:

The verb record is used to convey service discovery information about the services running through the ASP layer. The format for the verb NDEF auxiliary recording is shown in FIG. 5 . The main attributes of the verb messages are as given in Table 1 below.

fields Explanation Verb ID
The ID is used to identify the service, and values for the WFDS-defined services are defined in the connection handover standard 1.4. A service based on a third-party application or an enable service of the WFDS value is set to "0xFF" Verb Type The verb type indicates the request type. Number of Service TLVs (No. of Service TLVs) Number of service information TLVs (ie, for each service; there is one service TLV) Type Type of service attributes - set to OUI for Wi-Fi Alliance, 3 bytes, 4th byte reserved for future expansion Length The length of the service TLVs. A few tens of bytes (i.e. service hash and advertisement id) Bytes Service TLVs Tuples (service hash and service advertisement). For useful services and service selection records:
bytes: [service hash: service advertisement] (0- n)
Regarding the service requester:
bytes: [service hash] (0-n)

Using verb types:

Verb type NDEF claimant NDEF selector use Requested Included in the above NDEF Request - Request a specific service or instances of the service or the number of services
one or more service information TLVs, including the verb auxiliary data including the service intent sent by the searcher device Selected - Included in the selector NDEF As a response NDEF selector message of the service intent Useful (Available) - Included in the selector NDEF with an NDEF selector message indicating all of the services supported by the advertiser device.

6 illustrates a mechanism for discovering services by the advertiser device 104 using a service intent request received from the searcher device 102, in accordance with embodiments disclosed herein. The handover request sent by the NDEF requestor (i.e., where the device will have the role of discoverer supporting the ASP) includes the following parameters, as described below:

P2P Wi-Fi 다이렉트 캐리어 구성자(configurator) 기록

P2P Wi-Fi Direct carrier configurator record

"verb"로 칭해지는 보조 데이터 기록

Auxiliary data recording called "verb"

º Verb ID set to 0xFF for vendor specific verb definitions

º Verb type set to "Requested"

º Number of service TLVs 1 (No. of service TLVs 1)

º Type set by OUI of Wi-Fi Alliance

º Length field set to 6

º Service hash value of 6 bytes for the service requested by the searcher

In addition, the NDEF Select sends the NDEF Select Record (ie, the advertiser role supporting the ASP), which records the following parameters, as described below includes:

P2P Wi-Fi 다이렉트 캐리어 구성자 기록은 대체 캐리어 기록을 선택

P2P Wi-Fi Direct Carrier Configurator Records Select Alternate Carrier Records

상기 서비스가 지원되고 상기 정보가 유용할 경우, "verb"로 칭해지는 보조 데이터 기록을 포함한다.

When the service is supported and the information is available, it contains an auxiliary data record called a “verb”.

º Verb ID set to 0xFF for vendor specific verb definitions

º Verb type set to “Selected”

º Number of service TLVs 1 (No. of service TLVs 1)

º Type set by OUI of Wi-Fi Alliance

º Length field set to 10

º Service hash value of 6 bytes for services supported by the advertiser

º 4 byte advertisement ID (ie service instance)

In addition, the information received in the handover selection record confirms the usefulness of the service.

7 illustrates another mechanism for discovering service by the advertiser device 104 using a multiple service intents request received from the searcher device 102 in accordance with embodiments disclosed herein. is showing The handover request sent by the NDEF requestor (i.e., where the device will have a searcher role supporting the ASP) includes the following parameters, as described below:

P2P Wi-Fi 다이렉트 캐리어 구성자 기록

P2P Wi-Fi Direct Carrier Configurator Record

"verb"로 칭해지는 보조 데이터 기록

Auxiliary data recording called "verb"

º Verb ID set to 0xFF for vendor specific verb definitions

º Verb type set to "Requested"

º Number of service TLVs 1 (No. of service TLVs 1)

º Type set by OUI of Wi-Fi Alliance

º N (number of services requested by the searcher) * length field set to 6

º Service hash value of 6 bytes for the service requested by the searcher

The NDEF selection also sends the NDEF selection record (ie, the advertiser role supporting the ASP), the record including the following parameters, as described below:

P2P Wi-Fi 다이렉트 캐리어 구성자 기록은 대체 캐리어 기록을 선택

P2P Wi-Fi Direct Carrier Configurator Records Select Alternate Carrier Records

상기 서비스가 지원되고 상기 정보가 유용할 경우, "verb"로 칭해지는 보조 데이터 기록을 포함한다.

When the service is supported and the information is available, it contains an auxiliary data record called a “verb”.

º Verb ID set to 0xFF for vendor specific verb definitions

º Verb type set to “Selected”

º Number of service TLVs 1 (No. of service TLVs 1)

º Type set by OUI of Wi-Fi Alliance

º Length field set to 10

º Service hash value of 6 bytes for services supported by the advertiser device

º 4-byte advertisement ID

In addition, the information received in the handover selection record confirms availability of one or more services that are a subset of the received service hashes.

8 illustrates a mechanism for discovering the useful services, according to embodiments disclosed herein. The empty service intent verb auxiliary data record request for all useful services. The handover request sent by the NDEF requestor (i.e., where the device will have the role of discoverer supporting the ASP) includes the following parameters, as described below:

P2P Wi-Fi 다이렉트 캐리어 구성자 기록

P2P Wi-Fi Direct Carrier Configurator Record

"verb"로 칭해지는 보조 데이터 기록

Auxiliary data recording called "verb"

º Verb ID set to 0xFF for vendor specific verb definitions

º Verb type set to "Requested"

º Number of service TLVs 1 (No. of service TLVs 1)

º Type set by OUI of Wi-Fi Alliance

º Length field set to 0

The NDEF selection also sends the NDEF selection record (ie, the advertiser role supporting the ASP), the record including the following parameters, as described below:

P2P Wi-Fi 다이렉트 캐리어 구성자 기록은 대체 캐리어 기록을 선택함

P2P Wi-Fi Direct Carrier Configurator Record Choose Alternate Carrier Record

상기 서비스가 지원되고 상기 정보가 유용할 경우, "verb"로 칭해지는 보조 데이터 기록을 포함한다.

When the service is supported and the information is available, it contains an auxiliary data record called a “verb”.

º Verb ID set to 0xFF for vendor specific verb definitions

º Verb type set to “Selected”

º Number of service TLVs 1 (No. of service TLVs 1)

º Type set by OUI of Wi-Fi Alliance

Length field set to 20

º 2* [service hash value of 6 bytes for service supported by the advertiser device, advertisement id of 4 bytes]

In addition, the information received in the handover selection record receives the advertiser's useful services.

of information NDEF selector lack( NDEF Selector lack of information):

In one embodiment, the advertiser will not have information about the supported services over the Wi-Fi Direct, which is set to 0x01, indicating to the searcher's ASP that the service information is not available. It will be described using the verb message above using setting the 4th byte of the type field. When the searcher lacks information about the service information, the verb auxiliary record contains the following information indicating the lack of information on the advertiser side as described below:

상기 정보가 유용하지 않을 경우, "verb"로 칭해지는 보조 데이터 기록을 포함한다.

When this information is not available, it includes an auxiliary data record called "verb".

º Verb ID set to 0xFF for vendor specific verb definitions

º Verb type set to "Available"

º Number of service TLVs 1 (No. of service TLVs 1)

º Type set as OUI of Wi-Fi Alliance 0x50 0x6F 0x9A 0x01

º Length field set to 0

9 illustrates a service session discovery mechanism, in accordance with embodiments disclosed herein. The NDEF selector may request to join the NDEF selector to an existing ongoing session using NFC, and may allow a service discovery mechanism. The handover request sent by the NDEF requestor includes the following information, as described below:

P2P Wi-Fi 다이렉트 캐리어 구성자 기록

P2P Wi-Fi Direct Carrier Configurator Record

"verb"로 칭해지는 보조 데이터 기록

Auxiliary data recording called "verb"

º Verb ID set to 0xFF for vendor specific verb definitions

º Verb type set to "Available"

º Number of service TLVs 1 (No. of service TLVs 1)

º Type set by OUI of Wi-Fi Alliance

º Length field set to X

º Service_hash

º Advertisement_id (optional)

º Session_info (service-specific session information) For example, a 1-byte session identifier

The NDEF selection also sends the NDEF selection record (ie, the advertiser role supporting the ASP), the record including the following information, as described below:

P2P Wi-Fi 다이렉트 캐리어 구성자 기록은 대체 캐리어 기록을 선택함

P2P Wi-Fi Direct Carrier Configurator Record Choose Alternate Carrier Record

상기 서비스가 지원되고 상기 정보가 유용할 경우, "verb"로 칭해지는 보조 데이터 기록을 포함한다.

When the service is supported and the information is available, it contains an auxiliary data record called a “verb”.

º Verb ID set to 0xFF for vendor specific verb definitions

º Verb type set to “Selected”

º Number of service TLVs 1 (No. of service TLVs 1)

º Type set by OUI of Wi-Fi Alliance

º Length field set to 6/10

º Service_hash

º Advertisement_id

Connection using NFC handover :

The P2P specification defines the NFC handover mechanism to trigger the Wi-Fi P2P connections between two devices. The Wi-Fi P2P carrier configurator record will be used as an alternate carrier record for bootstrapping of the P2P connection to initiate a new P2P connection for the service session. The handover request record will include the Wi-Fi P2P carrier configuration record when there is no existing connection between two devices or the devices capable of initiating a new connection for the requested service session. The handover selection record will include the Wi-Fi P2P carrier configuration record if compatible service matches exist. The Wi-Fi P2P carrier configurator record will include the following attributes to be used for this specification to initiate the P2P connection.

ID designation Explanation 0x 30 (TBD) P2P_Version (P2P_Version) Describes the level of the P2P, the value is set to a major version and a minor version
[Major version] [Minor version] indicating the level of the P2P implementation. The ASP may define the additional version indicating the ASP definition P2P version 0x27 Feature Capability Describe the ASP characteristic capability information 0x23 Connection capability info Describe the connection settings above. 0x28 Persistent group info Describe the permanent group information

In addition, the alternate carrier describes the bootstrap information P2P connection. The alternate carrier will contain an auxiliary record called a network identifier as described in the NFC specification 1.4. The following attributes will be used from the specification NFC 1.4.

attribute designation handover type of request Explanation IPv4 attribute Hr Indicates the IP address of the handover request.
This may be included in the case of starting in permanent. For the GO device, this will be the GO IP address. IPv4 attribute Hs It indicates the IP address of the handover selector device. For the GO device, this will be the GO IP address. IPv6 Hr/Hs IP address of the device

This specification defines the following new attributes specific to the service.

attribute designation handover request type Explanation Target_IPv4_address Hr/Hs Indicate the IP address of the target device. This is to allocate the static IP address to the target device. This would be applicable for the permanent group, where the claimant device is the GO of the group.
The handover selection message includes this message when the handover selection message is GO, and allocates the IP to the handover requestor device. Target_IPv6_address Attribute Hr/Hs Indicate the IP address of the target device. This is to allocate the static IP address to the target device. This would be applicable for the permanent group, where the claimant device is the GO of the group. The handover selection message includes this message when the handover selection message is GO, and allocates the IP to the handover requestor device. Service_network_information (Service_network_information) Hr/Hs Additional service-specific information required under the above services

attribute rescue:

In one embodiment, the attribute structure is shown in Tables 6, 7 and 8 as follows:

length value Explanation One 0x09 (TBD) Attribute type: target_IPv4_address One 0x04 Attribute length 4 octets 4 IP address IP address

length value Explanation One 0x0A (TBD) Attribute type: target_ _IPv6_address One 0x10 attribute length 16 IPv6 address IPv6 address

length value Explanation One 0x0B (TBD) Attribute Type: Service Information One 0-255 attribute length 16 Service Specific Information Service Definition Information

10 illustrates another sequence diagram 1000 for establishing a service session between the searcher device 102 and the advertiser device 104 in the wireless P2P network, according to embodiments disclosed herein. . In one embodiment, the searcher device 102 includes multiple layers, such as the service layer 102b, ASP layer 102c, and NFC layer 102d. Similarly, the advertiser device 104 includes multiple layers, such as the service layer 104b, ASP layer 104c, and NFC layer 104d. Details of layers below the NFC layer, such as the physical (PHY) layers, are intentionally omitted. The signaling sequence illustrates the communication between the searcher device 102 and the advertiser device 104 .

First, in step 1002, the searcher device 102 initiates the service discovery via NFC, the service discovery triggers a search service request to be sent from the service layer 102b to the ASP layer 102c. . In one embodiment, the search service request may include one or more service hashes. At the same time, the service layer 104b constitutes the ASP layer 104c with a list of services supported by the advertiser device 104 .

After receiving the search service request from the service layer 102b, in step 1004, the ASP layer 102c configures the NFC layer 102d with handover records based on the search service request. At the same time, after receiving the list of services from the service layer 104b, the ASP layer 104c configures the NFC layer 104d with the service or aggregation information of the services by configuring the NDEF records. . In one embodiment, the handover request includes, by way of example, but not limited to, the following parameters, as described below:

상기 규격 P2P1.5에 정의되어 있는 바와 같은 Wi-Fi P2P 캐리어 구성 기록으로 설정된 대체 캐리어 기록

Alternative carrier record set as Wi-Fi P2P carrier configuration record as defined in the above specification P2P1.5

º Include the P2P_Version attribute set to “0x02 0x00”.

º may include the Feature Capability attribute, which is used to exchange the ASP transport capability parameter as defined by the ASP core specification.

º Used to trigger the Auto GO or Persistent GO, may include the connection capability information.

º It may include the permanent group information describing the group information.

상기 섹션 3.2.5에 의해 식별되는 바와 같은 상기 서비스 TLV들과 함께 타입 “Verb”의 상기 보조 기록을 포함할 것이다.

shall include the auxiliary record of type “Verb” with the service TLVs as identified by section 3.2.5 above.

B A service will be identified by the set of service hashes.

상기 NFC 규격 1.4에 설명되어 있는 바와 같은 상기 디바이스 정보 및 보조 정보를 포함할 것이다. 하지만, 상기 보조 기록 “NI”는 기저 P2P 토팔러지(underlying P2P topology)가 상기 ASP 계층에 알려져 있지 않거나 혹은 기존 연결이 존재하지 않을 경우 존재하지 않을 것이다.

It will include the device information and auxiliary information as described in the NFC specification 1.4. However, the auxiliary record “NI” will not exist if the underlying P2P topology is not known to the ASP layer or if an existing connection does not exist.

In step 1006, the ASP layer 104c sends the subscription event to the NFC layer 104d. In step 1008 , the NFC layer 102d of the searcher device 102 sends the handover request message to the NFC of the advertiser device when the searcher device 102 is connected to the advertiser device 104 . to the layer 104d. The handover request message includes a previously configured NDEF record as follows.

상기 시나리오들을 추가적으로 포함할 상기 서비스 해쉬들을 포함하는 Verb

Verb containing the service hashes to further include the scenarios

P2P Wi-Fi 대체 캐리어 구성자 기록

P2P Wi-Fi Alternative Carrier Configurator Records

After receiving the handover request message from the searcher device 102, in step 1010, the advertiser device 104 determines the supported services according to the verb records required in the NDEF records, and , the NFC layer 104d sends a handover selection message including the supported services (ie, to be a subset of the supported services) to the NFC layer 102d. The handover selection message contains the following records, as described below:

대체 캐리어 기록: P2P Wi-Fi 캐리어 구성자 기록

Alternate Carrier Records: P2P Wi-Fi Carrier Configurator Records

Verb 보조 기록은 상기 지원되는 서비스들(즉, 상기 핸드오버 요구에 포함되어 있는 서비스 해쉬들의 서브 집합)을 포함한다.

The verb auxiliary record includes the supported services (ie, a subset of service hashes included in the handover request).

In step 1012, the NFC layer 102d sends the received writes to the ASP layer 102c. At the same time, the NFC layer 104d sends the writes to the ASP layer 104c. After receiving the records, in step 1014 , the ASP layer 102c will generate the "Search_Results" event containing NDEF records comprising the set of supported services. Also, the ASP layer 102c transmits the generated results to the service layer 102b. At the same time, the ASP layer 104c transmits Search_Results including the service information to the service layer 104b.

In step 1016, the ASP layer 102c establishes the underlying connection using P2P attributes such as the received NDEF request and connection capabilities by sending a provision discovery request to the ASP layer 104c. trigger After receiving the provision discovery request, the ASP layer 104c sends the provision discovery response to the ASP layer 102c. In step 1020 , the GO is established between the searcher device 102 and the advertiser device 104 .

In step 1022, the service layer 102b of the searcher device 102 sends a connection session message containing the service to be operated to the ASP layer 102c. In step 1024, the ASP layer 102c triggers the ASP session initiation procedures with the advertiser device 104. In step 1026 , the ASP layer 104c sends a session request message to the service layer 104b to establish a session between the searcher device 102 and the advertiser device 104 .

11 illustrates another sequence diagram 1100 for establishing a service session between the searcher device 102 and the advertiser device 104 in the wireless P2P network, according to embodiments disclosed herein. . In one embodiment, the searcher device 102 includes multiple layers, such as the service layer 102b, ASP layer 102c, and NFC layer 102d. Similarly, the advertiser device 104 includes multiple layers, such as the service layer 104b, ASP layer 104c, and NFC layer 104d. Details of layers below the NFC layer, such as the physical (PHY) layers, are intentionally omitted. The signaling sequence illustrates the communication between the searcher device 102 and the advertiser device 104 .

First, in step 1102 , the searcher device 102 initiates the service discovery and connection via NFC, and the service discovery and connection is a connection service to be transmitted from the service layer 102b to the ASP layer 102c . Trigger a primitive (connect service primitive). In one embodiment, the connection service primitive may include one or more service hashes. At the same time, the service layer 104b constitutes the ASP layer 104c with the list of services provided by the advertiser device 104 .

After receiving the connection service primitive from the service layer 102b, in step 1104, the ASP layer 102c configures the NFC layer 102d with the handover records based on the connection service primitive. At the same time, after receiving the list of services from the service layer 104b, the ASP layer 104c configures the NFC layer 104d with the service or aggregation information of the services by configuring the NDEF records. . In one embodiment, the handover request includes, by way of example, but not limited to, the following parameters, as described below:

상기 규격 P2P1.5에 정의되어 있는 바와 같은 Wi-Fi P2P 캐리어 구성 기록으로 설정된 대체 캐리어 기록

Alternative carrier record set as Wi-Fi P2P carrier configuration record as defined in the above specification P2P1.5

º Include the P2P_Version attribute set to “0x02 0x00”.

º may include the Feature Capability attribute, which is used to exchange the ASP transport capability parameter as defined by the ASP core specification.

º Will include the connectivity capability information, used to trigger the Auto GO. The connection capability information is set to GO.

º Include the action channel P2P attribute.

B shall include the device password and credential attributes as identified by the specification P2P1.5 above.

상기 섹션 3.2.5에 의해 식별되는 바와 같은 상기 서비스 TLV들과 함께 타입 “Verb”의 상기 보조 기록을 포함할 것이다.

shall include the auxiliary record of type “Verb” with the service TLVs as identified by section 3.2.5 above.

B A service will be identified by the service hash.

상기 규격 NFC 1.5에 설명되어 있는 바와 같은 보조 데이터 기록 “NI”를 포함할 것이다.

It will include ancillary data write “NI” as described in specification NFC 1.5 above.

º Include the IPv4 attribute indicating the IP address of the searcher device 102 .

º will include the Target_IPv4_Address attribute to assign the static IP address to the advertiser device 104 .

º May include the service_information attribute describing network parameters (eg, a required port and protocol associated with the service) associated with the service.

상기 NFC 규격 1.4에 설명되어 있는 바와 같은 상기 디바이스 정보 및 보조 정보를 포함할 것이다.

It will include the device information and auxiliary information as described in the NFC specification 1.4.

In step 1106, the ASP layer 104c sends the subscription event to the NFC layer 104d. In step 1108 , the NFC layer 102d of the searcher device 102 sends the handover request message to the NFC of the advertiser device when the searcher device 102 is connected to the advertiser device 104 . to the layer 104d. The handover request message includes a previously configured NDEF record as follows.

상기 시나리오들을 추가적으로 포함할 상기 서비스 해쉬들을 포함하는 Verb

Verb containing the service hashes to further include the scenarios

P2P Wi-Fi 대체 캐리어 구성자 기록

P2P Wi-Fi Alternative Carrier Configurator Records

After receiving the handover request message from the searcher device 102, in step 1110, the advertiser device 104 determines the supported services according to the verb records required in the NDEF records and , the NFC layer 104d sends a handover selection message including the supported services (ie, to be a subset of the supported services) to the NFC layer 102d. The handover selection message contains the following records, as described below:

대체 캐리어 기록: P2P Wi-Fi 캐리어 구성자 기록

Alternate Carrier Records: P2P Wi-Fi Carrier Configurator Records

º Include the above connection capability attribute, which is set by the client.

Verb 보조 기록은 상기 지원되는 서비스들(즉, 상기 핸드오버 요구에 포함되어 있는 서비스 해쉬들의 서브 집합)을 포함한다.

The verb auxiliary record includes the supported services (ie, a subset of service hashes included in the handover request).

In step 1112, the NFC layer 102d sends the received writes to the ASP layer 102c. After receiving the records, in step 1114 , the ASP layer 102c will generate the "Search_Results" event containing NDEF records comprising the set of supported services. Also, the ASP layer 102c transmits the generated results to the service layer 102b.

In step 1116, the ASP layer 102c triggers the underlying connection and initiates the automatic GO procedure for the connection. Both the searcher device 102 and the advertiser device 104 will initiate the automatic GO procedure with the searcher device 102 set to GO. In step 1118, the ASP layer 102c notifies the connection status using the connection status attributes.

In step 1120 , the ASP layer 104c sends the session request message to the service layer 104b to establish a session between the searcher device 102 and the advertiser device 104 . In step 1122 , the ASP session is established between the searcher device 102 and the advertiser device 104 .

12 is a flow diagram illustrating a method for establishing a service session between the searcher device 102 and the advertiser device 104 in the wireless P2P network, according to embodiments disclosed herein. At step 1202 , the method includes transmitting the intent to the advertiser device 104 during the NFC data exchange between the searcher device 102 and the advertiser device 104 . In one embodiment, the method allows the retriever device 102 to transmit the intent to the advertiser device 104 during the NFC data exchange. In one embodiment, the intent corresponds to the services and parameters. In an embodiment, the service may be, for example, the transmission service, the play service, the display service, the print service, the chatting service, the beam service, or the like, but is not limited thereto. In one embodiment, the parameters include the connectivity capability, the operating channel, the listening channel, the SSID average, the password or PIN, the IP address of the advertiser device 104 , the IP address of the searcher device 102 . can be

At step 1204 , the method includes receiving the matching intent from the advertiser device 104 during the NFC data exchange. In one embodiment, the method allows the searcher device 102 to receive the matching intent from the advertiser device 104 during the NFC data exchange.

At step 1206 , the method includes establishing the service session between the searcher device 102 and the advertiser device 104 if the services are supported by the advertiser device 104 .

In one embodiment, the method allows the searcher device 102 to initiate the service session between the searcher device 102 and the advertiser device 104 if the services are supported by the advertiser device 104 . allow to establish

In another embodiment, the method allows the advertiser device 104 to connect the service between the searcher device 102 and the advertiser device 104 if the services are supported by the advertiser device 104 . Allows establishing a session.

The various actions, acts, blocks, steps, etc. included in the method may be performed in the order presented above, in a different order, or concurrently. Also, in some embodiments, some actions, acts, blocks, steps, etc. may be omitted, added, modified, skipped, etc. without departing from the scope of the present invention.

13 is a flow diagram illustrating a method of establishing the service session by automatically forming the group between the searcher device 102 and the advertiser device 104, in accordance with embodiments disclosed herein. to be. At step 1302 , the method includes the searcher device 102 and the advertiser device 104 connecting to each other to initiate an NFC data exchange between the searcher device 102 and the advertiser device 104 . . In step 1304 , the method includes a method between the searcher device 102 and an advertiser device 104 based on the listening channel exchanged between the searcher device 102 and an advertiser device 104 during the NFC data exchange. and fixing the channel frequency.

At step 1306 , the method includes transmitting the intent to the advertiser device 104 during an NFC data exchange between the searcher device 102 and the advertiser device 104 . In one embodiment, the method allows the retriever device 102 to transmit the intent to the advertiser device 104 during the NFC data exchange.

In one embodiment, the intent corresponds to one or more services and one or more parameters. In an embodiment, the service may be, for example, the transmission service, the play service, the display service, the print service, the chatting service, the beam service, or the like, but is not limited thereto. In one embodiment, the parameters include the connectivity capability, the working channel, the listening channel, the SSID average, the password or PIN, the IP address of the advertiser device 104 , the IP address of the searcher device 102 . can be

At step 1308 , the method includes identifying services supported by the advertiser device 104 after receiving the intent from the searcher device 102 . In one embodiment, the method allows the advertiser device 104 to identify the supported services after receiving the intent from the searcher device 102 .

At step 1310 , the method includes transmitting the matching intent to the searcher device 102 during the NFC data exchange after identifying services supported by the advertiser device 104 . In one embodiment, the method comprises the matching intent to the searcher device 102 during the NFC data exchange after the advertiser device 104 identifies the services supported by the advertiser device 104 . is allowed to transmit

In step 1312 , the method determines that the connection capability, or the operating channel, or the SSID average, or a combination of the connection capability, the operating channel, and the SSID average advertises with the searcher device 102 during the NFC data exchange. and automatically forming a group between the searcher device 102 and the advertiser device 104 when exchanged between child devices 104 . At step 1314 , the method includes establishing a service session between the searcher device 102 and the advertiser device 104 if the services are supported by the advertiser device 104 . In one embodiment, the method establishes a service session between the searcher device 102 and the advertiser device 104 when the searcher device 102 establishes a service session between the searcher device 102 and the advertiser device 104 when the services are supported by the advertiser device 104 . allow to do In another embodiment, the method allows the advertiser device 104 to establish a service session between the searcher device 102 and the advertiser device 104 when the services are supported by the advertiser device 104 . allow to do

The various actions, acts, blocks, steps, etc. included in the method may be performed in the order presented above, in a different order, or concurrently. Also, in some embodiments, some actions, acts, blocks, steps, etc. may be omitted, added, modified, skipped, etc. without departing from the scope of the present invention.

14 is a diagram illustrating an example system 1400 for automatically establishing the service session between the searcher device 102 and an advertiser device 104, in accordance with embodiments disclosed herein. In one embodiment, the system 1400 includes the searcher device 102 and multiple advertiser devices 104 having a fixed intent. As shown in FIG. 14 , the plurality of advertiser devices 104 1 - ₆ are a television (TV) or set-top box (STB), printer, speaker, hard-disk, music systems, including streaming devices.

Further, the retriever device 102 is connected to an advertiser device of any one of the plurality of advertiser devices 104 _1-6 as shown in FIG. 14 to initiate the NFC data exchange. The device type indicates an intent of a user associated with the searcher device 102 . After the searcher device 102 detects the device type, based on the device type exchanged during the NFC data exchange, the P2P connection may be automatically established, and the service associated with the device type is may be initiated when intended by the user of the searcher device 102 . If the device type is the printer, the printer will automatically start the print service when the searcher device 102 is connected to the printer.

15 is a diagram illustrating another example system 1500 for establishing a service session between the searcher device 102 and the advertiser device 104 in accordance with embodiments disclosed herein. The system 1500 includes the searcher device 102 and the advertiser device 104 with variable intent (ie, supporting one or more services).

The retriever device 102 is connected to the advertiser device 104 to initiate the NFC data exchange. After connecting the retriever device 102 to the advertiser device 104 , the advertiser device 104 responds to the connection to the advertiser device 104 supported by the advertiser device 104 during the NFC data exchange. It sends a list of services (ie, service A, service B, service C) to the searcher device 102 . For example, the service A may be the print service, the service B may be the display service, and the service C may be the streaming service. Services supported by the advertiser device 104 are displayed as popup messages on a display screen of the searcher device 102 . The user of the searcher device 102 may select a specific service or ignore the service connected via Wi-Fi Direct. When the user selects the specific service (eg, service A) from among the services in the list when performing a gesture, the selected service (ie, service A) is transmitted to the searcher device 102 and the may be operated by the searcher device 102 by establishing a service session between the advertiser devices 104 .

16 is a diagram illustrating another example system 1600 for establishing a service session between the searcher device 102 and the advertiser device 104, in accordance with embodiments disclosed herein.

The retriever device 102 is connected to the advertiser device 104 to initiate the NFC data exchange. The searcher device 102 sends the service intent (ie, service A) to the advertiser device 104 during the NFC data exchange. For example, the service A may be a display service. After receiving the service intent, the advertiser device 104 identifies whether the service A is supported by the advertiser device 104 . After the advertiser device 104 identifies the supported service A, it sends the matched service A to the searcher device 102 during the NFC data exchange.

After the searcher device 102 receives the supported service A, the service A is automatically initiated by establishing a service session between the searcher device 102 and the advertiser device 104 .

17 is a diagram illustrating another example system 1700 for establishing the service session between the searcher device 102 and the advertiser device 104 in accordance with embodiments disclosed herein. The system 1700 includes the searcher device 102 and an advertiser device 104 .

The retriever device 102 is connected to the advertiser device 104 to initiate the NFC data exchange. The searcher device 102 sends the service A, service B and service C to the advertiser device 104 during the NFC data exchange. For example, the service A may be the print service, the service B may be the display service, and the service C may be the streaming services. After receiving the service A, service B, and service C, the advertiser device 104 identifies whether the service A, service B, and service C are supported by the advertiser device 104 . After the advertiser device 104 identifies the supported service C, it sends the matched service C to the searcher device 102 during the NFC data exchange.

After the searcher device 102 receives the supported service C, the service C is automatically initiated by establishing a service C session between the searcher device 102 and the advertiser device 104 .

18 illustrates a computing environment implementing a method and system for establishing a service session between the searcher device 102 and an advertiser device 104 in accordance with embodiments disclosed herein. It is a drawing. 18 , the computing environment 1802 includes a control unit 1804 , an Arithmetic Logic Unit (ALU) 1806 , a memory 1810 , a storage unit 1812 , and , comprising at least one processing unit 1808 , comprising a number of networking devices 1816 and a number of input output (I/O) devices 1814 . do. The processing unit 1808 processes the instructions of the algorithm. The processing unit 1808 receives instructions from the control unit to perform the processing of the processing unit 1808 . In addition, the logical and computational operations involved in the execution of the instructions are computed with the aid of the ALU 1806 .

The overall computing environment 1802 may consist of multiple homogeneous and/or heterogeneous cores, multiple CPUs of different types, specific media and other accelerators. The processing unit 1808 processes the instructions of the algorithm. Also, the plurality of processing units 1808 may be located on a single chip or multiple chips.

An algorithm consisting of instructions and codes required for the implementation is stored in the memory unit 1810 or the storage unit 1812 or both the memory unit 1810 and the storage unit 1812 . At execution time, the instructions may be retrieved from the corresponding memory 1810 and/or storage unit 1812 and executed by the processing unit 1808 .

In the case of any hardware implementations, various networking devices 1816 or external I/O devices 1814 may be coupled to the computing environment via the networking unit and the I/O device unit to support the implementation. have.

The embodiments disclosed herein may be implemented through at least one software program that is executed in at least one hardware device and performs network management functions for controlling the elements. Elements as shown in FIGS. 1 to 18 include blocks, which may be at least one of a hardware device or a combination of a hardware device and a software module.

The above description of the specific embodiments is the practice herein so that others may readily modify and/or adapt the specific embodiments without departing from the overall concept for various applications by applying current knowledge. It will fully show the general nature of the examples, and thus such adaptations and modifications should and are intended to be understood within the meaning and scope of equivalents of the disclosed embodiments. It is understood that the phraseology and terminology used herein is for the purpose of description and is not limiting. Accordingly, although the embodiments herein have been described in terms of preferred embodiments, those of ordinary skill in the art will recognize that the embodiments herein fall within the spirit and scope of the embodiments as described herein. It will be appreciated that modifications may be made.

Claims (19)

A method for a searcher device to establish a service session with an advertiser device in a wireless peer-to-peer (P2P) network, the method comprising:
generating a first intent including a plurality of first services and at least one parameter related to the plurality of first services;
transmitting the first intent to the advertiser device during a near field communication (NFC) data exchange with the advertiser device;
receiving, from the advertiser device, a second intent including at least one second service during NFC data exchange with the advertiser device, wherein the at least one second service is selected from among the plurality of first services; a service supported by the advertiser device;
establishing at least one service session between the searcher device and the advertiser device based on the transmission/reception of the first intent and the second intent;
The at least one service session is a session corresponding to each of the at least one second service,
The at least one parameter includes information about a listening channel, wherein during the NFC data exchange, the searcher device and the advertiser based on information about the listening channel exchanged between the searcher device and the advertiser device. A service session establishment method, characterized in that the channel frequency between devices is fixed. delete According to claim 1,
The at least one parameter may include a connection capability, an operating channel, a Service Set identification (SSID) average, a password, a PIN, an Internet Protocol (IP) address of the advertiser device and an IP address of the searcher device. Service session establishment method, characterized in that it further comprises at least one of. 4. The method of claim 3,
During the NFC data exchange, automatically forming a group between the searcher device and the advertiser device based on at least one of the connection capability exchanged between the searcher device and the advertiser device, the operating channel, and the SSID average. Service session establishment method, characterized in that it further comprises the process of. delete A searcher device establishing a service session with an advertiser device in a wireless peer-to-peer (P2P) network, the searcher device comprising:
A first transceiver for communicating with a near field communication (NFC) network;
a second transceiver for performing P2P communication;
at least one processor connected to the first transceiver and the second transceiver;
the at least one processor,
generating a first intent including a plurality of first services and at least one parameter related to the plurality of first services;
send the first intent to the advertiser device during the NFC data exchange with the searcher device;
During the NFC data exchange with the searcher device, receive, from the advertiser device, a second intent comprising at least one second service, wherein the at least one second service includes the advertisement of the plurality of first services. It is a service supported by the own device,
and establish at least one service session between the advertiser device and the searcher device based on the transmission and reception of the first intent and the second intent,
The at least one service session is a session corresponding to each of the at least one second service,
The at least one parameter includes information about a listening channel, wherein during the NFC data exchange, the searcher device and the advertiser based on information about the listening channel exchanged between the searcher device and the advertiser device. A searcher device establishing a service session, characterized in that the channel frequency between the devices is fixed. delete 7. The method of claim 6,
The at least one parameter may include a connection capability, an operating channel, a Service Set identification (SSID) average, a password, a PIN, an Internet Protocol (IP) address of the advertiser device and an IP address of the searcher device. Searcher device for establishing a service session, characterized in that it further comprises at least one of. 9. The method of claim 8,
the at least one processor,
During the NFC data exchange, automatically forming a group between the searcher device and the advertiser device based on at least one of the connection capability exchanged between the searcher device and the advertiser device, the operating channel, and the SSID average. A searcher device for establishing a service session, characterized in that it is further configured to: delete delete A method for an advertiser device to establish a service session with a searcher device in a wireless peer-to-peer (P2P) network, the method comprising:
a first intent comprising a first plurality of services and at least one parameter relating to the plurality of first services from the searcher device during a Near Field Communication (NFC) data exchange with the searcher device. The process of receiving (intent) and
transmitting a second intent including at least one second service to the searcher device during NFC data exchange with the searcher device, wherein the at least one second service is selected from among the plurality of first services; a service supported by the advertiser device;
establishing at least one service session between the advertiser device and the searcher device based on the transmission/reception of the first intent and the second intent;
The at least one service session is a session corresponding to each of the at least one second service,
The at least one parameter includes information about a listening channel, wherein during the NFC data exchange, the searcher device and the advertiser based on information about the listening channel exchanged between the searcher device and the advertiser device. A service session establishment method, characterized in that the channel frequency between devices is fixed. 13. The method of claim 12,
The at least one parameter may include a connection capability, an operating channel, a Service Set identification (SSID) average, a password, a PIN, an Internet Protocol (IP) address of the advertiser device and an IP address of the searcher device. Service session establishment method, characterized in that it further comprises at least one of. 14. The method of claim 13,
During the NFC data exchange, automatically forming a group between the searcher device and the advertiser device based on at least one of the connection capability exchanged between the searcher device and the advertiser device, the operating channel, and the SSID average. Service session establishment method, characterized in that it further comprises the process of. delete An advertiser device establishing a service session with a searcher device in a wireless peer-to-peer (P2P) network, the advertiser device comprising:
A first transceiver for communicating with a near field communication (NFC) network;
a second transceiver for performing P2P communication;
at least one processor connected to the first transceiver and the second transceiver;
The at least one processor is configured to receive a plurality of first services and at least one parameter related to the plurality of first services from the searcher device during a near field communication (NFC) data exchange with the searcher device. Receiving a first intent (intent) comprising,
During the NFC data exchange with the searcher device, transmit, to the searcher device, a second intent comprising at least one second service, wherein the at least one second service is the advertisement of the plurality of first services. It is a service supported by the own device,
and establish at least one service session between the advertiser device and the searcher device based on the transmission and reception of the first intent and the second intent;
The at least one service session is a session corresponding to each of the at least one second service,
The at least one parameter includes information about a listening channel, wherein during the NFC data exchange, the searcher device and the advertiser based on information about the listening channel exchanged between the searcher device and the advertiser device. An advertiser device, characterized in that the channel frequency between the devices is fixed. 17. The method of claim 16,
The at least one parameter may include a connection capability, an operating channel, a Service Set identification (SSID) average, a password, a PIN, an Internet Protocol (IP) address of the advertiser device and an IP address of the searcher device. Advertiser device, characterized in that it further comprises at least one of. 18. The method of claim 17,
the at least one processor,
During the NFC data exchange, automatically forming a group between the searcher device and the advertiser device based on at least one of the connection capability exchanged between the searcher device and the advertiser device, the operating channel, and the SSID average. An advertiser device, characterized in that it is configured to.


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